Copolymers of ethylene, process for producing them and their use

Abstract

This invention relates to novel quaternary copolymers and their preparation. The quaternary copolymers consist of 70-90 parts ethylene, 0.5-15 parts of an alkyl ester (wherein said alkyl group contains up to 8 carbon atoms) of an unsaturated monocarboxylic acid having 3-6 carbon atoms or a vinyl ester of a saturated monocarboxylic acid having up to 3 carbon atoms, 0.5-10 parts of an amide of an unsaturated monocarboxylic acid having 3-6 carbon atoms, and 0.15 parts of a vinyl ether having up to 10 carbon atoms; the sum of the parts totalling 100.

What we claim is: 
     
       1. A method of coating a material comprising applying a copolymer consisting essentially of (a) a first comonomer comprising 70-90 parts by weight of ethylene per 100 parts by weight of said copolymer.   (b) a second comonomer said second comonomer being present in an amount of 0.5 to 15 parts by weight per 100 parts by weight of said copolymer, said second comonomer comprising (1) an alkyl ester wherein the alkyl group contains up to 8 carbon atoms, of an unsaturated monocarboxylic acid having 3 to 6 carbon atoms, or   (2) a vinyl ester of a saturated carboxylic acid having up to 3 carbon atoms,     (c) a third comonomer comprising an amount of an amide of an unsaturated monocarboxylic acid having 3 to 6 carbon atoms, said amount being 0.5 to 10 parts by weight per 100 parts by weight of said copolymer and,   (d) a forth comonomer comprising an amount of a vinyl ether having up to 10 carbon atoms, said amount being 0.1 to 5 parts by weight per 100 parts by weight of said copolymer, to a first material to form a coated material.   
     
     
       2. The process of claim 1 wherein said first material is selected from the group consisting of metal, ceramic, paper, textile, wood, glass, leather, and plastic. 
     
     
       3. The method of claim 1 wherein said first comonomer is present in an amount of 80 to 90 parts by weight per 100 parts by weight of said copolymer. 
     
     
       4. The method of claim 1 wherein said second comonomer is present in an amount of 7 to 12 parts by weight per 100 parts by weight of said copolymer. 
     
     
       5. The method of claim 1 wherein said third comonomer is present in an amount of 5 to 8 parts by weight per 100 parts by weight of said copolymer. 
     
     
       6. The method of claim 1 wherein said fourth comonomer is present in an amount of 0.1 to 1 part by weight per 100 parts by weight of said copolymer. 
     
     
       7. The method of claim 1 wherein (a) said first comonomer is present in an amount of 80 to 90 parts by weight per 100 parts by weight of said copolymer,   (b) said second comonomer is present in an amount of 7 to 12 parts by weight per 100 parts by weight of said copolymer.   (c) said third comonomer is present in an amount of 5 to 8 parts by weight per 100 parts by weight of said copolymer, and   (d) said fourth comonomer is present in an amount of 0.1 to 1 part by weight per 100 parts by weight of said copolymer.   
     
     
       8. The method of claim 1 wherein second second comonomer is selected from the group consisting of tert-butyl acrylate, tert-butyl methacrylate, tert-amyl acrylate, and tert-amyl methacrylate. 
     
     
       9. The method of claim 1 wherein said second comonomer is vinyl acetate. 
     
     
       10. The method of claim 1 wherein said third comonomer is selected from the group consisting of acrylamide, methacrylamide, and crotonic acid amide. 
     
     
       11. The method of claim 1 wherein said fourth comonomer is selected from the group consisting of methyl vinyl ether, propyl vinyl ether, i-butyl vinyl ether, and n-butyl vinyl ether. 
     
     
       12. The method of claim 1 having a melt flow index of 0.1 to 100. 
     
     
       13. The method of claim 1 wherein said melt flow index is 0.1 to 50. 
     
     
       14. The process of claim 1 further comprising fixing said coated material to a second material. 
     
     
       15. The process of claim 14 wherein said coated material is bonded to said second material. 
     
     
       16. The process of claim 14 wherein said second material is selected from the group consisting of metal, ceramic, paper, textile, wood, glass, leather, and plastic.